Provisional tax funding for New Zealand businesses

Provisional tax is the bill that punishes success. Have a strong year, and Inland Revenue expects the next year to be at least as strong — so your instalments rise just as you are reinvesting profit into stock, staff or equipment. For a lot of growing New Zealand businesses, that is exactly when the cash runs thin.

How does provisional tax work?

Provisional tax is income tax paid in instalments during the year rather than in one lump sum at the end. You generally have to pay it when your residual income tax — the tax left over after things like PAYE and tax credits — was more than $5,000 for the previous year.

Under the standard option, for a business with a 31 March balance date, the three instalments are due on:

• 28 August
• 15 January
• 7 May

Other options exist. The estimation option lets you pay based on your own forecast. The ratio option ties payments to your GST turnover. The accounting income method (AIM) works off figures from approved accounting software. Each changes the size and timing of payments, which is worth discussing with your accountant.

After the year ends and your return is filed, any balance becomes terminal tax — usually due on 7 February, or 7 April if you have a tax agent with an extension of time.

Why do provisional tax gaps catch businesses out?

A few common patterns:

• Uplift after a good year. Standard-option instalments are calculated from last year’s tax, plus an uplift, so a breakout year produces large bills twelve months later.
• Lumpy income. Contractors, builders and seasonal operators may be cash-poor exactly when an instalment lands.
• Terminal tax and instalments colliding. In January and May, a GST payment and a provisional tax instalment can fall within days of each other.
• Reinvested profit. The profit that created the tax has already gone into growth.

What does it cost to leave provisional tax unpaid?

Inland Revenue can charge use-of-money interest on underpaid provisional tax and, depending on the option and circumstances, late payment penalties. It is a moving cost that keeps building while the balance stays unpaid. Comparing that against the total cost of a short-term loan is a sensible part of the decision — and something we can talk through with real figures.

What funding options cover provisional tax?

Instalment size	Common route	Notes
Small to medium	Unsecured short-term loan	Sized on bank statements; same day possible for smaller amounts
Recurring each period	Business line of credit	Draw for each instalment, repay between dates
Large, or combined with GST and terminal tax	Property-secured loan	$20,000 to $5,000,000 against residential or commercial property
Already overdue and stacking	IRD debt loan	Consolidates tax debts into one repayment

How do I size the loan properly?

Start with the instalment, then look at the next eight to thirteen weeks. If the account goes negative straight after you pay, you need a little more. If it recovers quickly, borrow just the instalment and choose a short term. Our 13-week cash flow forecast guide explains how to map this out, and the Cash Flow Gap & Fast Loan Matcher gives you a quick estimate.

If you would like a person to look at it with you, run a quick 60-second enquiry — there’s no credit check involved.

How can I make next year’s instalments easier?

• Ask your accountant about the estimation or AIM options if this year is clearly different from last.
• Set aside a fixed percentage of every deposit in a separate tax account.
• Plan around January and May, when tax dates bunch up.
• Keep returns on time even when you can’t pay in full.

An illustrative example: the January squeeze

Picture an illustrative Tauranga landscaping company with a 31 March balance date. On 15 January, its second provisional tax instalment and its November–December GST payment fall due together. December was busy, but many customers pay in January and February, and the team took a two-week break over Christmas. The account simply doesn’t hold enough for both bills.

A short-term unsecured loan covering the provisional instalment, repaid over three to four months as January and February invoices are collected, would keep both tax obligations on time. If the same squeeze is likely in May, when the third instalment meets the March GST return, a line of credit might serve better.

Common questions about tax and lending

Lenders understand that tax bills are lumpy, and they generally prefer a business that pays its tax on time with short-term funding over one that lets tax debt build up. That said, they will want to see that your filings are up to date, that any existing arrangement with Inland Revenue is being kept, and that the business is profitable — after all, provisional tax only arises because the business made money.

Get your instalment covered

Provisional tax is predictable, which makes it easy to fund well. Tell us the instalment amount, the due date and roughly what your account turns over. There is no credit check when you first get in touch, we won’t circulate your details among a crowd of lenders, and a real person will call you with the fastest sensible option.

Accurate answers on the form — amount, purpose, trading history and any property — let us match you correctly first time. Check what’s possible for your tax bill.